package com.newyetai.security.cas;

import java.util.Collection;

import org.springframework.security.authentication.AbstractAuthenticationToken;
import org.springframework.security.core.GrantedAuthority;

/**
 * cas认证信息
 * 
 * @author sr on 2020-06-04
 */
public class CasAuthenticationToken extends AbstractAuthenticationToken {

  /**  **/
  private static final long serialVersionUID = 4078096826251434490L;

  private final Object principal;
  private String credentials;

  public CasAuthenticationToken(Object principal, String credentials) {
    super(null);
    this.principal = principal;
    this.credentials = credentials;
    setAuthenticated(false);
  }

  public CasAuthenticationToken(Object principal,
      Collection<? extends GrantedAuthority> authorities) {
    super(authorities);
    this.principal = principal;
    this.credentials = null;
    super.setAuthenticated(true);
  }

  @Override
  public Object getCredentials() {
    return this.credentials;
  }

  @Override
  public Object getPrincipal() {
    return this.principal;
  }

  @Override
  public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
    if (isAuthenticated) {
      throw new IllegalArgumentException(
          "Cannot set this token to trusted - use constructor which takes a GrantedAuthority list instead");
    }
    super.setAuthenticated(false);
  }

  @Override
  public void eraseCredentials() {
    super.eraseCredentials();
    credentials = null;
  }
}